Introduction
This manual provides detailed instructions for the assembly, operation, and maintenance of your Greesum 10x10FT Outdoor Storage Shed. Designed for secure and spacious storage, this shed is constructed from heavy-duty galvanized steel, offering durability and weather resistance for your tools, lawn equipment, bikes, and other outdoor items. Please read all instructions carefully before beginning assembly and retain this manual for future reference.

Figure 1: Greesum 10x10FT Outdoor Storage Shed (Brown)
Important Safety Information
- Always wear protective gloves during assembly to prevent injury from sharp edges.
- Ensure the shed is installed on a flat, solid, and level surface. A wooden platform is recommended for stability and moisture protection.
- Before purchasing and installing, verify any local Homeowners' Association (HOA) guidelines or building codes regarding outdoor structures.
- This shed is delivered in two boxes. Ensure all parts are present and undamaged before starting assembly.
- A padlock is required for securing the lockable doors (lock not included).
Assembly Instructions
The Greesum storage shed is designed for straightforward assembly with clearly numbered parts. Two people are recommended for assembly to ensure stability and ease of construction.
Pre-Assembly Checklist
- Unpack and Identify Parts: Carefully unpack all components from the two boxes. Each part is numbered for easy identification. Refer to the parts list provided in your packaging.
- Site Preparation: Select a suitable location for your shed. The ground must be flat, level, and firm. A concrete slab or a sturdy wooden platform is highly recommended as a base (floor not included).
- Tools Required: Gather necessary tools such as a screwdriver, wrench, measuring tape, and protective gloves.
- Inspect Components: Before assembly, inspect all panels and structural elements for any damage. While rare, minor bends can occur during shipping and can often be gently straightened.
Assembly Steps (General Overview)
Follow the step-by-step diagrams and instructions provided in the physical manual included with your product. The general sequence involves:
- Assembling the base frame.
- Attaching the wall panels, ensuring correct orientation for proper alignment of holes.
- Constructing the roof frame and attaching the roof panels.
- Installing the doors and door hardware.
- Securing all fasteners and checking for stability.

Figure 2: Product Dimensions and Capacity. Note: Actual exterior dimensions are 122"D x 125.5"W x 76.4"H.
Note on Dimensions: The shed's exterior dimensions are approximately 122"D x 125.5"W x 76.4"H. Please refer to the detailed dimension diagram and measure your intended installation area carefully to ensure compatibility, especially if constructing a custom base.
Operating Instructions
Door Operation and Security
The shed features double hinged doors for easy access. To open, simply unlatch the doors. For security, the doors are designed with pre-drilled holes to accommodate a standard padlock (not included). Ensure the doors are properly closed and latched before applying a padlock.

Figure 3: Lockable Door Mechanism and Ventilation
Ventilation
Integrated large vents are present near the roofline to promote air circulation, helping to keep the interior fresh and dry and reduce condensation. Ensure these vents remain unobstructed.
Storage Capacity
The shed offers ample interior space for organizing various items. Consider using shelving units or hooks to maximize vertical storage. Refer to the interior layout diagram for potential arrangements.

Figure 4: Example Interior Layout and Storage Potential
Maintenance
General Cleaning
To maintain the appearance and longevity of your shed, periodically clean the exterior with mild soap and water. Avoid abrasive cleaners or harsh chemicals that could damage the galvanized steel finish.
Inspection
Regularly inspect the shed for any signs of wear, loose fasteners, or damage. Tighten any loose screws or bolts. Check the roof and seams for potential leaks, especially after heavy rain or snow. The shed features "leakable eaves" designed to manage water runoff, but regular inspection ensures optimal performance.

Figure 5: Shed Construction Details: Eaves, Beams, and Steel Thickness
Winter Care
While the shed's strong beams are designed to carry snow, it is advisable to remove excessive snow accumulation from the roof to prevent undue stress on the structure.
Troubleshooting
- Difficulty Aligning Holes: If holes do not align during assembly, re-check the orientation of the panels. Many issues arise from a panel being installed incorrectly. Loosen adjacent fasteners, adjust the panel, and then re-tighten. Do not force parts together.
- Panels Appear Bent or Damaged: Minor bends in panels can sometimes occur during shipping. Gently straighten any bent edges or panels using pliers or a soft mallet before assembly. If damage is significant and affects structural integrity, contact customer support.
- Shed Feels Unstable After Assembly: Ensure all fasteners are securely tightened. Verify that the shed is placed on a perfectly flat and level surface. Uneven ground can cause the structure to be wobbly. Consider anchoring the shed to its base for added stability.
- Doors Do Not Close Properly or Meet: This often indicates an issue with the base being uneven or panels being misaligned during assembly. Re-check the base levelness and the alignment of the door frame and adjacent wall panels. Adjust as necessary.
- Water Inside the Shed: While the shed is water-resistant, ensure all seams are properly sealed during assembly. Check for any gaps or loose panels. Ensure the base is elevated and prevents water ingress from below. Clear any debris from the eaves and roof to allow proper water runoff.
Specifications
| Brand | Greesum |
| Model Number | GS-406BN-820 |
| Color | Brown |
| Material | Alloy Steel |
| Product Dimensions (D x W x H) | 122"D x 125.5"W x 76.4"H |
| Style | Utility |
| Base Material | Alloy Steel |
| Top Material Type | Metal |
| Water Resistance Level | Water Resistant |
| Frame Material | Alloy Steel |
| Door Style | Double Hinged Door |
| Assembly Required | Yes |
| Item Weight | 120.4 pounds |
Warranty Information
Specific warranty details for Greesum products are typically provided with the product packaging or can be found on the official Greesum website. Please refer to these resources for comprehensive warranty terms and conditions.
Customer Support
If you encounter any issues during assembly, operation, or maintenance, or if you have questions about your Greesum 10x10FT Outdoor Storage Shed, please contact Greesum customer service. Our dedicated support team is ready to assist you.
For further assistance, visit the official Greesum store or contact their customer support channels as listed on their website or product packaging.
Greesum Store Link: Visit Greesum Store on Amazon





